---tab Description--- LML Duramax Bar-and-Plate Intercooler Overview The 2011-2016 LML Duramax is a true towing powerhouse right out of the factory. However, when you start tuning, upgrading turbos, or towing heavy loads up steep grades, the factory charge air system quickly becomes the weakest link. The OEM intercooler relies on brittle plastic end tanks crimped to a thin core—a notorious recipe for boost leaks and catastrophic blowouts under load. Don't let a cracked plastic tank leave you stranded. The SPELAB Heavy-Duty Bar-and-Plate Intercooler is your bulletproof solution. Engineered with indestructible Cast Aluminum End Tanks and a massive 3.35-inch thick core, this unit boasts a 34% larger volume than stock. Measuring nearly 46 inches across, this massive thermal heat sink dramatically lowers Intake Air Temperatures (IATs) and keeps your Exhaust Gas Temperatures (EGTs) firmly in the safe zone during extreme towing. Built to handle 100+ PSI, it is the ultimate reliability upgrade for both hardworking stock LMLs and high-horsepower custom builds. Bar-and-Plate Intercooler Fitment 2011 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax 2012 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax 2013 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax 2014 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax 2015 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax 2016 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax Heavy-Duty Intercooler Key Features Indestructible Cast Aluminum End TanksTuned LML engines generate massive boost. We eliminated the weak factory plastic and weak welds in favor of solid, one-piece Cast Aluminum end tanks. They are optimized for maximum internal airflow and structurally capable of holding extreme boost pressures without ballooning. Massive 3.35" Bar-and-Plate Core (34% Larger)Featuring a 32.5% increase in core volume over the OEM tube-and-fin design. This competition-grade bar-and-plate construction offers immense thermal capacity, preventing heat soak and maintaining dense, cool air for your engine during back-to-back dyno pulls or long uphill tows. Drastic EGT ReductionBy supplying a significantly cooler air charge to your Duramax, this intercooler directly combats the dangerously high EGTs often experienced in tuned or heavy-towing LML trucks, protecting your pistons and turbo. Reduced Pressure DropThe ultra-efficient core design allows your factory or upgraded turbo to breathe easier. This boosts turbo efficiency, reduces mechanical strain, and significantly sharpens throttle response. Premium T-Bolt Clamps IncludedTo ensure your connections hold up to extreme boost, we include premium constant-tension T-bolt clamps for a blowout-proof installation at the intercooler joints. Product Specifications Core Type Heavy-Duty Bar-and-Plate End Tank Material Cast Aluminum Alloy Core Thickness 3.35 in Core Dimensions 36.14" L x 23.01" H Overall Dimensions 45.7" L x 26.2" H x 5.3" W Inlet / Outlet Size 3.0 in Max Boost...